The word “obviously” is overused in conversations. In some conversations it can be used interchangeably with “um” or “ah” or “you know”. I sometimes wonder if they are searching for the next words to speak but not retrieving them as easily as they had hoped.
My point is: the words that you are about to say may be obvious to you but they aren’t always obvious to those around you. But even so, I will continue to shake my head in agreement as if I had already drawn your conclusion.